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"""
Python client API for dynamic_reconfigure (L{Client}) as well as
example server implementation (L{Server}).
"""

import roslib


class DynamicReconfigureException(Exception):
    """
    dynamic_reconfigure base exception type
    """
    pass


class DynamicReconfigureParameterException(DynamicReconfigureException):
    """
    Exception for parameter errors.
    """
    pass


class DynamicReconfigureCallbackException(DynamicReconfigureException):
    """
    Exception for callback errors.
    """
    pass


def find_reconfigure_services():
    import rosservice
    return sorted([s[:-len('/set_parameters')] for s in rosservice.get_service_list() if s.endswith('/set_parameters')])


def get_parameter_names(descr):
    return descr.defaults.keys()
